<!--
@AURALINUX-ALLOW:table-cell-index*
@MAC-ALLOW:AXColumnIndexRange=*
@MAC-ALLOW:AXIndex=*
@MAC-ALLOW:AXRowIndexRange=*
@WIN-ALLOW:column_*
@WIN-ALLOW:row_*
@WIN-ALLOW:table*
-->
<!-- Ensure that table row defined as custom element still contains table cell -->
<style>
  td {
    border: 1px solid black;
  }
  custom-row {
    display: table-row;
  }

</style>
<template id="custom-row-shadow">
  <td>a</td>
  <td>b</td>
  <td>c</td>
</template>

<div style="display:table;border:1px solid gray">
  <div style="display:table-header-group">
     <custom-row></custom-row>
  </div>
  <div style="display:table-row-group">
    <custom-row></custom-row>
    <custom-row></custom-row>
  </div>
</table>
<script>
  class CustomRowElement extends HTMLElement {
    constructor() {
      super();
      let template = document.getElementById('custom-row-shadow');
      let templateContent = template.content;
      const shadowRoot = this.attachShadow({mode: 'open'})
        .appendChild(templateContent.cloneNode(true));
    }
  }
  customElements.define('custom-row', CustomRowElement);
</script>
